/* 顶部导航栏样式 */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: linear-gradient(90deg, #0f172a 0%, #1e293b 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* 平台标题样式 */
.platform-title {
  display: flex;
  align-items: center;
  font-weight: 600;
  font-size: 16px;
  color: #f1f5f9;
  letter-spacing: 0.5px;
}

/* 平台时间显示样式 */
.platform-time {
  font-size: 14px;
  color: #cbd5e1;
  font-family: 'Courier New', monospace;
  background: rgba(0, 0, 0, 0.2);
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* PC端响应式调整 */
@media (max-width: 1400px) {
  .top-nav {
    padding: 0 20px;
  }
  
  .platform-title {
    font-size: 15px;
  }
  
  .platform-time {
    font-size: 13px;
  }
}

@media (max-width: 1200px) {
  .top-nav {
    padding: 0 16px;
  }
  
  .platform-title {
    font-size: 14px;
  }
  
  .platform-time {
    font-size: 12px;
    padding: 4px 8px;
  }
}